- echo -n "Enabling lttng channel $channel_name for session $sess_name"
- $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel $channel_name -s $sess_name >/dev/null 2>&1
- if [ $? -eq 1 ]; then
- print_fail
- return 1
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN disable-channel -u $channel_name -s $sess_name >$OUTPUT_DEST
+ ok $? "Disable channel $channel_name for session $sess_name"
+}
+
+function enable_lttng_mmap_overwrite_kernel_channel()
+{
+ local sess_name=$1
+ local channel_name=$2
+
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name $channel_name -k --output mmap --overwrite >$OUTPUT_DEST
+ ok $? "Enable channel $channel_name for session $sess_name"
+}
+
+function enable_lttng_mmap_overwrite_ust_channel()
+{
+ local sess_name=$1
+ local channel_name=$2
+
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name $channel_name -u --output mmap --overwrite >$OUTPUT_DEST
+ ok $? "Enable channel $channel_name for session $sess_name"
+}
+
+function enable_ust_lttng_event ()
+{
+ local sess_name=$1
+ local event_name="$2"
+ local channel_name=$3
+ local expected_to_fail=$4
+
+ if [ -z $channel_name ]; then
+ # default channel if none specified
+ chan=""
+ else
+ chan="-c $channel_name"
+ fi
+
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" $chan -s $sess_name -u >$OUTPUT_DEST
+ ret=$?
+ if [[ $expected_to_fail ]]; then
+ test $ret -ne "0"
+ ok $? "Enable ust event $event_name for session $session_name on channel $channel_name failed as expected"